Optics and Its Applications: Proceedings of the 9th International Symposium OPTICS-2022

Description

This book features selected articles based on contributions presented at the 9th International Symposium on Optics and Its Applications (OPTICS-2022) in Yerevan-Ashtarak, Armenia. The annual OPTICS symposium brings together renowned experts from all over the world working in the fields of atomic optics, plasmonics, optics of nanostructures, as well as the optics of condensed matter, and provides a perfect setting for their discussions of the most recent developments in this area. The 9th iteration in this series, dedicated to the 80th birthday of Academician Eduard Kazaryan, focuses on topics dealing with the spectroscopy of real and artificial atoms, linear and nonlinear optical characteristics of quantum wells, and two-dimensional materials. The book highlights recent results of few-particle optical characteristics of artificial atoms in the framework of the exactly solvable Moshinsky model, as well as an electro-optical analog of the magneto-optical Faraday effect. In addition, a detailed study of the nucleation process, its characterization, as well as electronic and optical properties of graded composition quantum dots in the Stranski-Krastanov growth mode, is presented. Preface Eduard Kazaryan—Biography Contents Contributors 1 Current-Induced Optical Activity: First Observation and Comprehensive Study 1.1 Introduction 1.2 First Experimental Observation of the Current-Induced Optical Activity 1.3 Microscopic Mechanism of the Effect in Tellurium 1.4 Comprehensive Study of the Effect and Discussion of Its Results 1.5 Conclusion References 2 Optically Pumped Terahertz Radiation Sources Based on Impurity Carrier Transitions in Quantum Wells 2.1 Introduction 2.2 Terahertz Photoluminescence Under Interband Photoexcitation of Quantum Wells Doped with Shallow Donors 2.2.1 Mechanism of Terahertz Emission 2.2.2 Experimental Samples and Techniques 2.2.3 Experimental Results 2.3 Influence of Stimulated Near-Infrared Radiation on Terahertz Photoluminescence 2.3.1 Introduction 2.3.2 Experimental Samples and Techniques 2.3.3 Experimental Results, Their Analysis and Discussion 2.4 Terahertz Photoluminescence in Compensated Quantum Wells 2.4.1 Introduction 2.4.2 Experimental Samples and Techniques 2.4.3 Experimental Results, Their Analysis and Discussion 2.5 Conclusion References 3 Broadband Absorption of Microwaves in Periodic Cylindrical Structures 3.1 Introduction 3.2 Theory 3.3 Results and Discussion 3.4 Conclusion References 4 Dielectric Confinement Affected Exciton-Polariton Properties of the Semiconductor Nanowires 4.1 Introduction 4.2 Electromagnetic Linear Response to the Electromagnetic Field in the Macroscopically Homogeneous and Isotropic DQWW 4.3 Effective Boundary Conditions for the Electromagnetic Fields in the Macroscopically Homogeneous and Isotropic DQWW 4.4 The Scattering Coefficient of the Light from the Macroscopically Homogeneous and Isotropic DQWW References 5 Broadband Infrared Absorption Due to Low Q-factor Dipole Modes of Cr Strips 5.1 Introduction 5.2 Results and Discussion 5.2.1 Theory 5.2.2 Numerical Analysis 5.3 Conclusion References 6 Microwave and Joule Heating Visualization by a Thermo-Elastic Microscope for Carbon Composite Materials 6.1 Introduction 6.2 Materials and Methods 6.3 Results and Discussion 6.4 Conclusion References 7 Acceptor-Assisted Intraband Photoconductivity in upper G a upper A s divided by upper A l upper G a upper A sGaAs/AlGaAs Quantum Wells 7.1 Introduction 7.2 Samples and Methods 7.3 Experimental Results 7.3.1 Photoconductivity Spectra 7.3.2 Temperature Dependence of Electroconductivity 7.4 Conclusion References 8 Charge Carriers' States and Optical Transitions in CdS/HgS/CdS Core/Shell/Shell Cylindrical Nanostructure in the Presence of Strong Uniform Electrostatic Field 8.1 Introduction 8.2 Model Approximations 8.3 Single-Particle States in a Layer in the Presence of a Strong Transverse Field 8.4 Discussion of Results 8.5 Conclusions References 9 Quasi-conical Quantum Dot Helium 9.1 Introduction 9.2 Theory 9.3 Results 9.4 Conclusion References 10 Radiation of Surface Polaritons in Cylindrical Waveguides 10.1 Introduction 10.2 Electric Field for the Rectilinear Motion 10.3 Radiation Intensity for Surface Polaritons 10.4 Electric Field and the Radiation Intensity for a Circular Motion 10.5 Conclusion References 11 Crossing Points in Spectra and Light Absorption in Spheroidal and Cone-Shaped Quantum Dots 11.1 Introduction 11.2 Setting the Problem 11.3 Kantorovich Method 11.4 Numerical Calculations of the Energy Spectrum 11.5 Adiabatic Approximation and Size Quantization 11.6 Interband Absorption 11.7 Conclusion References 12 Electronic and Magnetic Properties of Laser Dressed Quantum Dot and Ring with Rashba Spin-Orbit Coupling 12.1 Introduction 12.2 Theoretical Model 12.3 Numerical Results and Discussion 12.4 Conclusion References 13 Magnetically Induced Atomic Transitions of Alkali Metal Atoms 13.1 Introduction 13.2 Experiment 13.2.1 Experimental Setup 13.2.2 Experimental Results and Discussion 13.3 Conclusion References 14 Effect of Molecular and Electronic Geometries on the Electronic Density in FLO-SIC 14.1 Introduction/Motivation 14.2 Theoretical Background 14.3 Computational Details 14.4 Results 14.4.1 Sisyphus Rock: The Importance of Grid and Basis Set Size 14.4.2 Pandora's Box: The Quality of Molecular Geometries Matters 14.4.3 The Sword of Damocles: Curse and Blessing of Approximations 14.5 Summary and Conclusion References 15 Approximate Solutions of a Kinetic Theory for Graphene 15.1 Introduction 15.2 The Basic KE and Its Approximate Solutions 15.2.1 Low Density Approximation 15.2.2 Effective Electromagnetic Mass Approximation 15.2.3 Method of Asymptotic Decompositions 15.3 Approximate Solutions of KEs for Different External Field Models in Graphene 15.3.1 The Sauter Pulse 15.3.2 The Gaussian Pulse 15.3.3 The Harmonic Field Model 15.4 Conclusion References 16 Possibility of Creating a Low-Cost Robot Assistant for Use in General Medical Institutions During the COVID-19 Pandemic 16.1 Introduction 16.2 Methods and Materials 16.3 Results and Their Analysis 16.3.1 Navigation Algorithm, the Motion Platform 16.3.2 Power Supply Design 16.3.3 Disinfection Equipment 16.3.4 Health Parameters Measurement Unit 16.3.5 UX-UI Interface 16.3.6 Data Storing 16.3.7 Control Algorithm 16.4 Conclusion References